#124 – Declaring and Instantiating Multidimensional Arrays
October 19, 2010 Leave a comment
C# allows declaring arrays of more than one dimension. Where a 1-dimensional array can be thought of as a simple list of elements, a 2-dimensional array can be thought of as a collection of elements organized into rows and columns.
Here are a couple of examples (remember that all arrays are 0-based):
// 2-dimensional array int[,] hourlyTempsForWeek = new int[7, 24]; hourlyTempsForWeek[2, 12] = 45; // Tuesday, 12PM hourlyTempsForWeek[6, 23] = 30; // Saturday, 11PM // 3-dimensional array, R/G/B values for each pixel on screen byte[, ,] pixelRGBValues = new byte[1024, 768, 3]; pixelRGBValues[0, 0, 0] = 255; // R value at (0,0) pixelRGBValues[0, 0, 1] = 0; // G value at (0,0) pixelRGBValues[0, 0, 2] = 255; // B value at (0,0)
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